How do I create a logo de sequência chart in JavaScript?

Install with `npm install katucharts.js`, import the module with `import 'katucharts.js/bio';`, then call KatuCharts.chart(container, { chart: { type: 'sequencelogo' }, series: [...] }).

Why does my logo de sequência chart render as a line chart?

The chart type was not registered. KatuCharts logs "KatuCharts: unknown series type " ", falling back to line" and draws a line chart rather than throwing. Import the module the type belongs to — for example `import 'katucharts.js/bio';` — before creating the chart.

Why do I get "Cannot read properties of null (reading 'appendChild')"?

The container element does not exist when the chart is created. Create the chart after the element is in the DOM: in React that means inside useEffect, not during render.

Why is the chart rendering with zero height?

The container has no height. A div with no content collapses to zero. Give it a height in CSS, or pass `chart: { height: 400 }` in the options.

Bioinformática · katucharts.js/bio

Logo de Sequência

type: 'sequencelogo'

Logo de sequência DNA/proteína — letras empilhadas por posição dimensionadas por conteúdo informativo / frequência.

Edite o JSON à direita e pressione Executar (ou ⌘/Ctrl + Enter) — dados, títulos, categorias e cores se atualizam ao vivo.

Ao Vivo

Logo de Sequência

Editar · JSON

{
  "chart": {
    "type": "sequencelogo"
  },
  "title": {
    "text": "Motivo de Sequência"
  },
  "series": [
    {
      "name": "Motif",
      "data": [
        {
          "x": 0,
          "y": 0,
          "custom": {
            "letters": [
              {
                "letter": "A",
                "height": 0.9
              },
              {
                "letter": "G",
                "height": 0.1
              }
            ]
          }
        },
        {
          "x": 1,
          "y": 0,
          "custom": {
            "letters": [
              {
                "letter": "C",
                "height": 0.6
              },
              {
                "letter": "T",
                "height": 0.4
              }
            ]
          }
        },
        {
          "x": 2,
          "y": 0,
          "custom": {
            "letters": [
              {
                "letter": "G",
                "height": 0.8
              },
              {
                "letter": "A",
                "height": 0.2
              }
            ]
          }
        },
        {
          "x": 3,
          "y": 0,
          "custom": {
            "letters": [
              {
                "letter": "T",
                "height": 0.5
              },
              {
                "letter": "C",
                "height": 0.3
              },
              {
                "letter": "A",
                "height": 0.2
              }
            ]
          }
        },
        {
          "x": 4,
          "y": 0,
          "custom": {
            "letters": [
              {
                "letter": "A",
                "height": 1
              }
            ]
          }
        },
        {
          "x": 5,
          "y": 0,
          "custom": {
            "letters": [
              {
                "letter": "G",
                "height": 0.7
              },
              {
                "letter": "C",
                "height": 0.3
              }
            ]
          }
        },
        {
          "x": 6,
          "y": 0,
          "custom": {
            "letters": [
              {
                "letter": "C",
                "height": 0.4
              },
              {
                "letter": "G",
                "height": 0.4
              },
              {
                "letter": "T",
                "height": 0.2
              }
            ]
          }
        },
        {
          "x": 7,
          "y": 0,
          "custom": {
            "letters": [
              {
                "letter": "T",
                "height": 0.85
              },
              {
                "letter": "A",
                "height": 0.15
              }
            ]
          }
        }
      ],
      "alphabetType": "DNA"
    }
  ]
}

Formato de dados

{ x: position, custom: { letters: [{ letter, height }] } }

Estrutura de dados

O JSON que você passa dentro do gráfico — coloque direto na sua series.

data: [
  { x: 0, custom: { letters: [{ letter: 'A', height: 0.9 }] } },
  { x: 1, custom: { letters: [{ letter: 'G', height: 0.7 }, { letter: 'C', height: 0.3 }] } },
  { x: 2, custom: { letters: [{ letter: 'T', height: 0.8 }] } }
]

Exemplo

KatuCharts.chart('container', {
  series: [{ type: 'sequencelogo', alphabetType: 'DNA',
    data: [{ x: 0, custom: { letters: [{ letter:'A', height:0.9 }] } }] }]
});

Opções específicas do tipo

Opção	Descrição
`alphabetType`	'DNA' (A/C/G/T) ou 'protein' (20 aminoácidos).

Variações

Alfabeto de proteínas

Mude alphabetType para 'protein' para empilhar os 20 glifos de aminoácidos.

KatuCharts.chart('container', {
  series: [{
    type: 'sequencelogo', alphabetType: 'protein',
    data: [{ x: 0, custom: { letters: [{ letter: 'M', height: 0.9 }] } }]
  }]
});

Common errors

Why does my logo de sequência chart render as a line chart?: The chart type was not registered. KatuCharts logs "KatuCharts: unknown series type "<type>", falling back to line" and draws a line chart rather than throwing. Import the module the type belongs to — for example `import 'katucharts.js/bio';` — before creating the chart.
Why do I get "Cannot read properties of null (reading 'appendChild')"?: The container element does not exist when the chart is created. Create the chart after the element is in the DOM: in React that means inside useEffect, not during render.
Why is the chart rendering with zero height?: The container has no height. A div with no content collapses to zero. Give it a height in CSS, or pass `chart: { height: 400 }` in the options.

FAQ

How do I create a logo de sequência chart in JavaScript?: Install with `npm install katucharts.js`, import the module with `import 'katucharts.js/bio';`, then call KatuCharts.chart(container, { chart: { type: 'sequencelogo' }, series: [...] }).
Why does my logo de sequência chart render as a line chart?: The chart type was not registered. KatuCharts logs "KatuCharts: unknown series type "<type>", falling back to line" and draws a line chart rather than throwing. Import the module the type belongs to — for example `import 'katucharts.js/bio';` — before creating the chart.
Why do I get "Cannot read properties of null (reading 'appendChild')"?: The container element does not exist when the chart is created. Create the chart after the element is in the DOM: in React that means inside useEffect, not during render.
Why is the chart rendering with zero height?: The container has no height. A div with no content collapses to zero. Give it a height in CSS, or pass `chart: { height: 400 }` in the options.

Opções comuns (color, visible, marker, dataLabels, animation, events, zones…) se aplicam a cada tipo — veja Configuração → series. Veja renderizado na galeria.